\input zb-basic
\input zb-ioport
\iteman{io-port 70966344}
\itemau{Grebenikov, Evgenii A.; Ikhsanov, Ersain V.; Prokopenya, Alexander N.}
\itemti{Studying the stability of the second order non-autonomous Hamiltonian system}
\itemso{CASC, 181-194 (2007).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/978-3-540-75187-8\_15}
\end